标签: cctexturecache

在每个场景的开头调用以下"清除"方法是一种好习惯吗？如果不是,我应该什么时候打电话给他们,是否有任何教程解释何时使用每个电话？我错过了什么吗？

    [CCTextureCache purgeSharedTextureCache];
    [CCSpriteFrameCache purgeSharedSpriteFrameCache];
    [CCAnimationCache purgeSharedAnimationCache];
    [CCShaderCache purgeSharedShaderCache];
    [[CCFileUtils sharedFileUtils] purgeCachedEntries];

(我正在使用Cocos2d 2.0并启用了ARC,不要认为它是相关的,但仍然认为值得一提)

我正在尝试创建像这样的粒子效果:

emitter = [[CCParticleSystemQuad alloc] initWithTotalParticles:45];
[emitter setEmitterMode: kCCParticleModeGravity];
emitter.position = ccp(100, 100);
emitter.texture=[[CCTextureCache sharedTextureCache] addImage:@"fire.png"];
CCParticleFire *fire = [[CCParticleFire alloc]init];
fire.position = ccp(0,0);
[self addChild:fire];
[self addChild:emitter];

我总是得到以下错误:

    013-01-11 17:45:49.263 Jumpy[8945:c07] -[CCFileUtils fullPathFromRelativePath:resolutionType:] : cocos2d: Warning: File not found: fire.png
    2013-01-11 17:45:49.264 Jumpy[8945:c07] cocos2d: CCTexture2D. Can't create Texture. cgImage is nil
    2013-01-11 17:45:49.264 Jumpy[8945:c07] cocos2d: Couldn't add image:fire.png in CCTextureCache
    2013-01-11 17:45:49.265 Jumpy[8945:c07] cocos2d: CCTexture2D. Can't create Texture. cgImage is nil
    2013-01-11 17:45:49.265 Jumpy[8945:c07] cocos2d: Couldn't add image:fire.png in …